kill a completely superflous event handler registration
kill a completely superflous event handler registration

This saves *lots* if useless CPU waste.

nolith/olsrd,sebkur/olsrd,duydb2/olsr,zioproto/olsrd,duydb2/olsr,ninuxorg/olsrd,duydb2/olsr,diogomg/olsrd-binary-heap,sebkur/olsrd,tdz/olsrd,diogomg/olsrd-binary-heap,cholin/olsrd,cholin/olsrd,duydb2/olsr,cholin/olsrd,cholin/olsrd,ninuxorg/olsrd,diogomg/olsrd-binary-heap,zioproto/olsrd,nolith/olsrd,tdz/olsrd,acinonyx/olsrd,servalproject/olsr,cholin/olsrd,tdz/olsrd,tdz/olsrd,brabander/olsr,diogomg/olsrd,nolith/olsrd,servalproject/olsr,acinonyx/olsrd,acinonyx/olsrd,ralisi/olsrd_cl_roam,diogomg/olsrd,sebkur/olsrd,servalproject/olsr,ralisi/olsrd_cl_roam,sebkur/olsrd,servalproject/olsr,ralisi/olsrd_cl_roam,brabander/olsr,duydb2/olsr,duydb2/olsr,ninuxorg/olsrd,nolith/olsrd,ninuxorg/olsrd,diogomg/olsrd-binary-heap,brabander/olsr,brabander/olsr,servalproject/olsr,sebkur/olsrd,acinonyx/olsrd,duydb2/olsr,zioproto/olsrd,diogomg/olsrd-binary-heap,diogomg/olsrd,diogomg/olsrd,ralisi/olsrd_cl_roam,ninuxorg/olsrd,nolith/olsrd,sebkur/olsrd,diogomg/olsrd,servalproject/olsr,diogomg/olsrd-binary-heap,diogomg/olsrd-binary-heap,diogomg/olsrd,zioproto/olsrd,tdz/olsrd,diogomg/olsrd,acinonyx/olsrd,zioproto/olsrd,duydb2/olsr